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12. Professional correspondence : April 1976 - July 1976
13. Professional correspondence : August 1976 - September 1976
14. Professional correspondence : September 1976 - October 1976
15. Professional correspondence : October 1976 - November 1976
16. Professional correspondence : November 1976 - December 1976
17. Professional correspondence : January 1977 - February 1977
18. Professional correspondence : February 1977 - March 1977
19. Professional correspondence : April 5, 1977 - April 29, 1977
20. Professional correspondence : April 1977 -May 1977
21. Professional correspondence : May 1977 - June 1977
22. Professional correspondence : June 1977 - July 1977
23. Professional correspondence : July 1977 - December 1977
24. Professional correspondence : December 1977 - January 1978
25. Professional correspondence : February 1978 - September 1978
26. Professional correspondence : October 1978 - December 1978
27. Professional correspondence : January 1979 - March 1979
28. Professional correspondence : March 1979 -May 1979
29. Professional correspondence : July 1979 - August 1979
30. Professional correspondence : August 1979 - December 1979
31. Professional correspondence : January 1980 - March 1980
32. Professional correspondence : March 1980 - July 1980
33. Professional correspondence : July 1980 - September 1980
34. Professional correspondence : September 1980 - October 1980